Yes. They had a control group with only black stripes along with an unpainted group. I would have to assume they also checked the paints for potential repellents, but I only skimmed the article.
I haven’t read the study, but most of these would need a placebo group, so divide the herd into thirds, one with no paint, one with stripes, and one fully painted white to get a baseline for each group. Also would be good to randomize which group each cow goes in each day so to rule out one cow who is especially tasty to flies.
I've not seen the study referenced, but if I were doing it I'd have cows I painted with white paint, white stripes, black paint, and a control I left unpainted.
So, I was able to convince a coworker that I had a friend who worked at our nearby zoo, and that my friend let me in on the secret that zebras aren't real, they're just horses painted to look like that, "big zoo is lying to us to get our money," you know.
Well, long story short I'm gonna need to steal this image from you and crop it, thanks.
Sure, but there's also the secondary market of people who think it's hilarious to get a photo with a donkey painted like a zebra to trick tourists. Lean into it a bit, like wrestling, it could be fun.
Interesting. A while ago, I read that zebra stripes were meant to confuse predators. Basically, the idea was that when they ran as a herd, their stripes made it difficult to tell where one zebra ended and the other began. I wonder if that's considered bunk now or if this is supposed to be an additional benefit.
See, some people think forcible sterilization is never acceptable, and yet we have multiple comments from people that didn't read the study asking if the authors thought of something.
Maybe you'd know if you were literate.
You can have your balls back if you do your homework.
This thread is like a Reddit/Lemmy Smart Guy combo. People who just assume paid researchers didn't consider this extremely basic thing they learned about in high school, and also hinting at IQ-based eugenics
Being illiterate has no correlation with wanting other people to do all the work for me. We're just lazy. Please do some homework before jumping to conclusions.
The treatments were black-and-white painted stripes, black painted stripes, and no stripes (all-black body surface). Recorded fly-repelling behaviors were head throw, ear beat, leg stamp, skin twitch, and tail flick. Photo images of the right side of each cow were taken using a commercial digital camera after every observation and biting flies on the body and each leg were counted from the photo images. Here we show that the numbers of biting flies on Japanese Black cows painted with black-and-white stripes were significantly lower than those on non-painted cows and cows painted only with black stripes
Black paint was not as effective as black and white paint.